package com.zHan.exception;

import com.zHan.pojo.Result;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import java.net.ConnectException;
import java.sql.SQLIntegrityConstraintViolationException;

/**
 * 全局异常处理器
 */
@ControllerAdvice(annotations = {RestController.class, Controller.class})
@Slf4j
@ResponseBody
public class GlobalExceptionHandler {
    /**
     * 异常处理方法
     *
     * @param ex
     * @return
     */
    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public Result<String> exceptionHandler(SQLIntegrityConstraintViolationException ex) {
        log.error(ex.getMessage());
        if (ex.getMessage().contains("Duplicate entry")) {
            String[] split = ex.getMessage().split(" ");
            String msg = split[2] + "已存在";
            return Result.error(msg);
        }
        return Result.error("未知错误");
    }

    /**
     * 业务异常处理方法
     *
     * @param ex
     * @return
     */
    @ExceptionHandler(BaseException.class)
    public Result exceptionHandler(BaseException ex) {
        log.error("异常信息：{}", ex.getMessage());
        return Result.error(ex.getMessage());
    }


    /**
     * 连接异常的处理方法
     *
     * @param ex
     * @return
     */
    @ExceptionHandler(ConnectException.class)
    public Result exceptionHandler(ConnectException ex) {
        log.error("异常信息：{}", ex.getMessage());
        return Result.error(ex.getMessage());
    }

    /**
     * 处理方法
     *
     * @param ex
     * @return
     */
    @ExceptionHandler(Exception.class)
    public Result exceptionHandler(Exception ex) {
        log.error("异常信息：{}", ex.getMessage());
        return Result.error(StringUtils.hasLength(ex.getMessage()) ? ex.getMessage() : "操作失败");
    }

}
